Witherspoon’s sweet recollection of Keaton has since gone viral, so it’s probably not all that surprising that other stars have since reacted to her IG post. Kerry Washington and Candace Cameron Bure were a couple of the actors to weigh in, and their reactions as well as others can be seen down below:

Reese Witherspoon's Hello Sunshine is now attached to an exciting Mattel movie that serves as a replacement for Greta Gerwig's Barbie.

Discover Reese Witherspoon’s 'How Do You Know' and 'Water for Elephants' and more on Hulu this weekend with these must-watch films

"Nobody will want to go see that movie because nobody wants to see a movie about a mom," the actress says she was warned, despite her being a mother at the time.

Reese Witherspoon and Harlan Coben discuss their new book, "Gone Before Goodbye." Will the thriller get a movie adaptation?

EXCLUSIVE: Mattel Studios’ Polly Pocket movie with Amazon MGM Studios continues to move forward to the big screen now with screenwriters Jordan Weiss and Dan Brier penning the script, and Reese Witherspoon’s Hello Sunshine co-developing the Lily Collins-led live action feature take of the popular micro-doll toys.

Oscar winner and literary champion Reese Witherspoon co-wrote her first novel, ‘Gone Before Goodbye,’ with bestselling thriller writer Harlan Coben. It plunges readers into the amoral world of the super-rich.